Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

Researchers at the University of Toronto see a future where a single injection under the eyelid could replace months of daily ...

Do you have blue eyes? We talked to experts to discover curious facts about baby blues, including whether your biological family is bigger than you ever imagined.

Medically reviewed by Christine L. Larsen, MD Eyesight, or vision, is the ability to see. Lifestyle factors such as eating a well-balanced diet, regular physical activity, taking screen breaks, and ...